If you haven't seen this before it's worth a watch.
Andreas explains why Big Blocks are not going to work. (watch time: 5-6mins, Petabyte Blocks & Streaming Money)
https://youtu.be/AecPrwqjbGw?t=11m39she is talking about how big block sizes would make bitcoin centralized (because he knows how Computing technologie would develop in the next 10 years ofc.)
Even if so: LN is by design centralized.
So whats that argument even about?